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GATE 2020 CE (CE1) – Question 16

Concrete Structures · Bond and development length · 1 mark · Multiple choice

A reinforcing steel bar, partially embedded in concrete, is subjected to tensile force P. Which figure represents the magnitude distribution of bond stress (hatched region) along the embedded bar?

Diagram for GATE 2020 CE (CE1) question 16
  1. Figure A
  2. Figure B
  3. Figure C
  4. Figure D

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Show answer and explanation

Correct answer: (C) Figure C

Explanation

Bar force is largest at the loaded exposed end and transfers progressively into concrete along its embedment. The bond demand is greatest near the loaded face and diminishes toward the free embedded end. **C** shows that trend. A uniform distribution is a design simplification,not the elastic distribution depicted here.